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A199927 as a simple table

na(n)
01
11
2-7
33
432
5-55
6-95
7399
8-11
9-2024
102573
117137
12-22015
13-9073
14123712
15-107499
16-498119
171168399
181090985
19-7323600
203535193
2133005393
22-59095943
23-95072229
24420022144
25-36762335
26-2099324671
272798230719
287241608157
29-23295324088
30-8015161307
31128935159185
32-119396284895
33-509999348249

[1,1,-7,3,32,-55,-95,399,-11,-2024,2573,7137,
 -22015,-9073,123712,-107499,-498119,1168399,
 1090985,-7323600,3535193,33005393,-59095943,
 -95072229,420022144,-36762335,-2099324671,
 2798230719,7241608157,-23295324088,-8015161307,
 128935159185,-119396284895,-509999348249]